726713687 has 32 divisors (see below), whose sum is σ = 880865280. Its totient is φ = 586460160.

The previous prime is 726713657. The next prime is 726713699. The reversal of 726713687 is 786317627.

726713687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 726713687 - 2¹⁰ = 726712663 is a prime.

It is a super-2 number, since 2×726713687² = 1056225565746267938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726713657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2058503 + ... + 2058855.

It is an arithmetic number, because the mean of its divisors is an integer number (27527040).

Almost surely, 2^726713687 is an apocalyptic number.

726713687 is a deficient number, since it is larger than the sum of its proper divisors (154151593).

726713687 is a wasteful number, since it uses less digits than its factorization.

726713687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its digits is 592704, while the sum is 47.

The square root of 726713687 is about 26957.6276218810. The cubic root of 726713687 is about 899.0581451403.

The spelling of 726713687 in words is "seven hundred twenty-six million, seven hundred thirteen thousand, six hundred eighty-seven".